Each of Aphelios' weapons have different strengths, so try to find the right situation for your current weapons.
Amumu's Despair makes purchasing primarily Health items a risky proposition.
Erratic movement, or hiding behind creep waves can make it difficult for Amumu to instigate a fight with Bandage Toss.
Avoid bunching up with other allies when Amumu has his ultimate available.
The stat comparisons provided here highlight several vital Aphelios against Amumu matchup stats that can help us distinguish the differences between the two. For instance, Aphelios’s KDA ratio ([kills + assists] / deaths) of NaN is better than Amumu’s KDA ratio of NaN, indicating that Aphelios may be more central to his team's team fighting potential than Amumu..
Aphelios often has a slightly larger longest killing spree than his matchup does. Typically, he receives less damage than Amumu. This is usually reflective of differing health capacities; however, it can also imply that the champion with more health has less mobility and thus is not able to flee from additional damage when poked or engaged.
Both LoL champs are great. Both have their strengths, weaknesses, and counters. In League's current meta, Aphelios usually fairs equally well when facing off against Amumu, with a 50.7% win rate. Thus, Aphelios makes an ok counter to Amumu.
While Aphelios does have a higher win rate than Amumu, when they face off with one another, Aphelios also has a much greater learning curve that makes him a more difficult champ to pick up and master. You should be careful when picking Aphelios into Amumuas his relative depth means you may not be able to unleash his full potential without a lot of practice beforehand.
Additionally, Aphelios has almost no amount of utility and CC, a similar amount to Amumu. This makes her just as valuable during team fights, especially when fighting champions with a lot of burst damage.
While there is not one best champion in League of Legends, in Aphelios vs Amumu matchups, Aphelios is the better champion with a similar win rate, more champion depth, and a similar amount of utility to help out your team members during late stage team fights.
Aphelios is a decent counter for Amumu. You will do well by focussing your tactics on keeping up your CS and clearing objectives. If you do that, you should be able to stand on your own as Aphelios against Amumu.
If you would like to learn all of the intricacies of Aphelios in order to counter Amumu during both the lane and mid / late game phases of League of Legends, you should continue reading to gather a few extra tricks and insights into this matchup. If you pay attention to the build and stats presented here, you will increase your win rate significantly and be closer to League of Legends pro players.
Aphelios most often racks up much more CS relative to Amumu. Champs who typically don't get much CS typically don't require much CS to be valuable teammates, such as support champions. These kinds of champions are able to scale well off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, usually need a lot of items to be effective. In either case, try to exceed the values displayed here to do well.
The best items to use in your Aphelios versus Amumu build consist of Infinity Edge, Lord Dominik's Regards, and Stormrazor. When Aphelios combined at least these three items in his build, he performed much better vs. Amumu than with most other common counter builds. In fact, Aphelios boasted an average win rate of 50.7% battling Amumu with these items in his kit.
To have the best chance of defeating Amumu as Aphelios, Aphelios players should take the Fleet Footwork, Overheal, Legend: Bloodline, Cut Down, Absolute Focus, and Gathering Storm runes from the Precision and Sorcery rune sets. Of all the rune combinations players chose for Aphelios vs Amumu counterpicks, this blending of runes yielded the greatest win rate. Notably, these runes provided a 50.7% win rate overall.
By default, tips, statistics, and builds on how to beat Amumu as Aphelios are displayed for all ranked divisions. If you want to narrow the stats and builds to a particular player tier, you should use the selection menu located earlier in the counter matchup guide.